Swiss Up! - Onion market: A Swiss tradition

No one really knows where the tradition came from. Did Bern just have a huge craving for onions one day? Did they have too many that they needed to get rid of?
Neither of these answers are correct, but Dario has some better theories on today's episode of Swiss Up! Plus, find out what things there are to do and taste at the annual Bern onion market. å